You have to reach out to IRCC and inform them of this immediately. I'm totally shocked that since January you're only just finding out as well. You will have to get your documents re-issued. In these times, pray this is sorted out quickly. The good thing as you said; you are sure the error is from them and not you.My Express Entry profile was approved at Accra Visa Office , Ghana on the 14th Jan. 2021. I observed that on the document section (where counterfoil details is seen) that the country of issue is the Republic of Niger, instead of Nigeria. I obtained my International passport at the Nigerian Immigration Service Office in Festac town, Lagos state, Nigeria.
I tried to board a flight from Lagos to Winnipeg and to my greatest surprise, was refused to board. The officer at the airport cited Visa issue as my personal information could not be accessed by the scanner. Upon check on my received COPR, I observed that the same error on my profile was made again on my COPR.
I am deeply worried about this especially knowing that my COPR will expire on May 12th, 2021. I have reviewed the information I filled on my profile and can confirm that the error isn't from me.